Method of making metallic connections



Nov. 12, 1929. I M. w. TEBYRICA 1,735,809

METHOD OF MAKING METALLIC CONNECTIONS Filed Sept. 21, 1927 mus-a Nov.12, 1929 v UNITED STATES PATENT OFFICE MARIO w, TEBYRICA', or RIO DEJANEIBO, BRAZIL, ssIeNon or ONE-HALF T0 McCLINTIC-MARSHALL CoMPANY, orPITTSBURGH, PENNSYLVANIA, A CORPORA- TION or PENNSYLVANIA, AND ONE-HALFT0 AMERICAN ROLLING MILL CoMPANY, or MInnLErowN, OHIO, A CORPORATION orOHIO METHOD OF MAKING METALLIC CONNECTIONS Application filed September21, 1927. Serial No. 220,941.

My invention relates to a new and improved method of connecting theedges of plates, pipe sections, particularly lock-barpipe sections, andthe like. The making of reliable connections for pipe sections of thecharacter specified has always been a source of considerable troublewhen the members or parts constituting lock-bar pipes are shippedunassembled and put together in the field Under present methods, theseparable parts or members have been connected by riveting or by apressing operation. Both methods are 'diflicult to carry out in thefield.

The prime object of the present invention is to provide a method ofmaking such connections that will overcome the disadvantages heretoforeencountered in practice, and one by whichthe said connections may bemade quickly and with the minimum of trouble, and, further, produce ajoint or connection possessing intimate Contact between materials and ofa strong and durable character.

The new method is intended to be used primarily for connecting themembers or parts constituting lock-bar pipes, but it may beadvantageously followed in forming connections between other structuralparts.

Byway of example, my method will be hereinafter described with referenceto connecting the parts entering into the construction of lock-barpipes.

My method contemplates the employment of a lock-bar of any suitableconstruction,

but preferably of the H-bar type, adapted to receive the adjacent edgesof two pipe sections in oppositely disposed spaces or chambers thereofand the employment of a suitable metal injecting apparatus for forcingmetal with considerable force into the said spaces of the lock-bar intowhich the Said adjacent edges have been introduced.

The metal injecting apparatus employed in carrying out my method may beone of any suitable type, preferably an apparatus ineluding means formelting the metal, atomizing means, and means for applying the metal tothe assembled parts of the lockbar pipe by an air blast.

In the accompanying drawings, which practicing my inthe upset portionsof the pipe edges omitted;

and

Fig. 3, a diagrammatic View, showing a lock-bar pipe and an injectingapparatus for applying metallic material to the parts to be connected.

Referring to the drawings, and first to the form of Fig. 1, 5 designatesa lock-bar of the H-type, sai'd bar, as illustrated, including an upperflange 6, a lower flange 7, and a web portion 8 connecting the twoflanges. This construction provides two spaces or chambers 9 and 10disposed on opposite sides of the Web and designed to receive twoadjacent edges of plates or pipe sections entering into the constructionof the-lock-bar pipe. 11 and 12 designate grooves formed in therespective chambers 9 and 10.

The two plate or pipe sections are designated by the numerals 13 and 14.These parts are respectively formed with upset portions a and I)designed, when the parts are assembled as shown by Fig. 1, to fit intothe grooves 11 and 12.

15 designates a suitable metallic filling or binding material,introduced. into the spaces 9 and 10 and between the walls thereof andthe edge portions of members 13 and 14, by

sufficient pressure to effectively join the parts together.

In the form of Fig. 2, I have shown a modified plate construction. Inthis form, the upset portions a and b are omitted from the plate members13 and 14, and the H-bar is lock-bar in contact with the bottom of thegroove and in spaced relation to portions ofthe sides of the groove, andin air-blasting metallic binder into said groove on opposite sides ofsaid edge portion.

In testimony whereof I afiix my signature.

MARIO W. TEBYRIGA.

